{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["GENE"], "input": "Fecal samples were collected at the beginning and end of each trial period and were analyzed for gastrointestinal nematode eggs and Giardia cyst ."}
{"GENE": []}